"It's super disappointing for Percy," coach Pete Carroll said Friday. "He wants to play. You could see it. He played his tail off when he had his chance. Just unfortunate circumstances, you know.

"... But we have functioned the way we function because we don't let things like that get to us and disturb us, and how we're thinking, and how we're preparing and all that. We would love to have him, but not this time."

2. Punter Ryan Allen (shoulder) was also listed as questionable for the Patriots. It's a positive sign that the Pats didn't sign a punter this week as a precaution; of course, kicker Stephen Gostkowski was great last week when pressed into duty. The Pats listed Allen as active Sunday, as expected.

4. For the 49ers, cornerback Carlos Rogers (hamstring) and fullback Will Tukuafu (knee) both were listed as questionable. Linebacker Ahmad Brooks (illness), who was described by coach Jim Harbaugh on Thursday as having a "little bug," was probable and fully participated in practice.